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It is important to clean the 1/16’ tubing on the tubing block and filter chips after each use to prevent cross-contamination, dried reagent buildup, and loss of efficiency. You can use the CLEANING WIZARD in the µPULSE software to clean your tubing block and filter chips, as shown in the following procedure.
Prepare a pipette, a pair of gloves, and a container if there is no sink in your lab.
Prepare some distilled water and a wipe which will have some sodium hydroxide solution (NaOH) applied to it. For more information, see Liquid Compatibility.
If you want to perform PIPE ONLY CLEANING, you must prepare the cleaning chip included in the accessory kit before using the CLEANING WIZARD.
Open the chip cover.
Insert the waste slide into its slot over the tubing block mount. Then, open the waste door and insert the waste tank.
Using the wipe soaked with NaOH solution, gently clean the outside of the 1/16” tubing and the inside top area of the tubing block.
Important: Make sure to use gloves to prevent personal injuries due to direct contact with the harsh chemical.
Now, clean the inside of the 1/16” tubing using either a pipette or CLEANING WIZARD. Jump to step 7 if you opt for CLEANING WIZARD.
Draw NaOH solution into the pipette using the appropriate technique for filling the pipette.
Flush the cleaning agent through the tubing over a sink or a container. Then, jump to step 11.
Fill both tubes with a cleaning solution.
Insert the tubes, put the tubing block into position, attach either the cleaning chip or the filter chip that you wish to clean, and close the chip cover.
On the Home Screen, tap the CLEANING WIZARD menu, select one of the cleaning modes below, and follow the on-screen instructions:
PIPE ONLY CLEANING is used to clean the 1/16” tubing.
COMPLETE CLEANING is used to clean the 1/16” tubing and the filter chip.
When the cleaning process is finished, remove the chip and tubes from the instrument. Safely dump the cleaning solution.
Important: Repeat the process, and rinse the outside of the tubing, with distilled water or buffer solution to remove traces of the cleaning solution before using the chip and tubing block again. For more information, see Liquid Compatibility.
Important: If you are planning to leave your chips unused for a few days or more, it is recommended to wash them with 30% glycerol before storing them.
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